TPS57040QDGQRQ1 The Texas Instruments TPS57040QDGQRQ1 is an automotive-qualified, 500mA step-down DC-DC converter. It operates from a 3.5V to 42V input voltage range and provides an adjustable output voltage.
Mfr Part #:

TPS57040QDGQRQ1

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS57040QDGQRQ1 is an automotive-qualified, 500mA step-down DC-DC converter. It operates from a 3.5V to 42V input voltage range and provides an adjustable output voltage.
✓ Total Stock: 43,999 pcs
$ Price Range: $1.19

TPS57040QDGQRQ1 Available from 5 distributors

✓ Authorised
✓ Non-Authorised

TPS57040QDGQRQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Duty Cycle (Max)
Features
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Quiescent Current
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
Voltage Reference

TPS57040QDGQRQ1 Description

Short technical summary and product information.

The Texas Instruments TPS57040QDGQRQ1 is an automotive-grade DC-DC switching regulator designed for step-down (buck) conversion. It features a wide input voltage range from 3.5V to 42V and can deliver up to 500mA of output current.

 

The output voltage is adjustable, with a nominal internal reference of 0.8V, allowing for flexible power supply designs. The device operates with a switching frequency adjustable from 100kHz to 2.5MHz, offering a balance between efficiency and component size. It includes features such as adjustable soft start, enable, frequency synchronization, power good output, and adjustable undervoltage lockout (UVLO).

 

This converter utilizes a current mode control scheme and incorporates Eco-Mode for high light-load efficiency, with a typical quiescent current of 116µA. The TPS57040QDGQRQ1 is available in a 10-HVSSOP package and is suitable for surface mount applications. It is qualified for automotive applications with an operating temperature range of -40°C to 125°C.

 

Key electrical characteristics include a 200mΩ high-side MOSFET, a maximum duty cycle of 100%, and a shutdown current of 1.5µA. The device also offers features like frequency synchronization to an external clock and adjustable slow start/sequencing.

TPS57040QDGQRQ1 Quick Information

Product Type: DC-DC Switching Regulator
Series: TPS57040-Q1
Canonical Name: TPS57040-Q1 Buck Converter
Subcategory: Step-Down

TPS57040QDGQRQ1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TPS57040QDGQRQ1 Estimated Pricing

Qty Low High
1+ $1.19 $1.19

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPS57040QDGQRQ1 Features

  • Automotive-qualified 500mA buck converter.
  • Wide 3.5V to 42V input voltage range.
  • Adjustable output voltage down to 0.8V.
  • High efficiency with Eco-Mode control.
  • Compact 10-HVSSOP package for surface mounting.

TPS57040QDGQRQ1 Applications

  • Powering automotive electronic systems.
  • General purpose DC-DC power conversion.
  • Applications requiring adjustable output voltage.
  • Designs needing wide input voltage range.

TPS57040QDGQRQ1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS57040QDGQRQ1?

3.5V to 42V.

What is the output voltage range?

0.8V to 39V, adjustable.

What package is the TPS57040QDGQRQ1 available in?

10-MSOP (0.118", 3.00mm Width) and 10-HVSSOP.

What is the operating junction temperature range?

-40°C to 125°C.

What is the switching frequency range?

100kHz to 2.5MHz.

What is the maximum output current?

500mA.

What control mode does the regulator use?

Current mode.

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